69 research outputs found

    Bright tripartite entanglement in triply concurrent parametric oscillation

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    We show that a novel optical parametric oscillator, based on concurrent χ(2)\chi^{(2)} nonlinearities, can produce, above threshold, bright output beams of macroscopic intensities which exhibit strong tripartite continuous-variable entanglement. We also show that there are {\em two} ways that the system can exhibit a new three-mode form of the Einstein-Podolsky-Rosen paradox, and calculate the extra-cavity fluctuation spectra that may be measured to verify our predictions.Comment: title change, expanded intro and discussion of experimental aspects, 1 new figure. Conclusions unaltere
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